4 ?.\r( 2 ) =y)©A D G C +¤\r6 25,ª©B G C E +¤681,\r'Q«A B C +¤&\r( 3 ) KL78©+¬t¨62 |w*6 |w)A B t\r10|w)®C¯A 3 °±²³´)'¥¦§¨¤&\r( 4 ) =y)ª78©++¬t¨65c/n* 3cµ)'¥\r¦§¨+¤&\r7 2 ? ? 7 4 ?.\r¶5·=y¸78ª¹+©*a8ª©)ª©\r+¬t6©¬t+7º, ¥¦§¨Q«¤6240,\r'Q8©+¤*&\r¶6·'yD¥¦§¨¤&\r¶7·=^y)'¥¦§¨+t*¤`\r6EFG\r7 3 ? ? 7 4 ?.\r( 8 ) = y )ª © + t Y © + t E 8 0 | w )¥¦\r§ ¨ + ¤ 880 | w &@Aª©+¤6EF|\r( 9 ) = y )© 4 5 C D D) 3 &t 2 0 | w ) C C ¯ A ´»\r+ ´ z )' ¥ ¦ § ¨ + ¤ &\r( 1 0 ) = y ) ¼ ¬ + ¤ 6 100 | w )'¥¦§¨+\r ¤ &\r7 4 ? ? 7 4 ?